Áudioanalyse - B 90 MKII Solid state power amplifier

Excellent power amplifier from Audio Analyse B 90 MKII functions like new! Vintage Class A power amplifier Audioanalyse B90 MK2, manufactured in France. Audioanalyse B90 MK II: 2x20 watts Class A, 2x100 watts Class AB, 1 x 350 watts mono in bridge, 2x100 watts Class AB, 2x20 watts Class A, 1x350 watts mono in bridge, 750 watts peak, 32 amperes of peak current. Weight: 10 kg. Audioanalyse B90 Rare high-fidelity vintage power amplifier.

The Audioanalyse B90 is a famous vintage French high-fidelity power amplifier, known for operating in pure Class A at low powers and switching to Class AB at higher powers. It is not a loudspeaker, as your question might suggest.
Technical Specifications
The O Audioanalyse B90 (including the MkII version) is a versatile and robust power amplifier. Its main features, based on sources such as Rehifi and hifiengine.info, are:
Output Power: operates with 2 x 20 Watts in pure Class A and increases to 2 x 100 Watts in Class AB.
Circuit: It has differential input and complementary output, equipped with 12 transistors capable of providing current above 32 amperes.
Connectivity: Uses pressure terminals for column connections and jack connectors for connection to the pre-amplifier (frequently used with Audioanalyse C90 or C900 pre-amplifiers).
Versatility: It is capable of delivering high-quality sound with speakers of particularly complex impedance, thanks to its ability to supply high current.
Modo Bridge: It can be configured to operate in bridge mode, providing even more mono power.
The creation of medical equipment suggested an origin of high-quality engineering, which was reflected in their audio products.
Sound quality: It is praised for its ability to produce high-quality sound, especially due to its Class A operation in the first 20W.
Lifespan: These amplifiers are described as 'serious electronic components' and, if found to be operational, are a good investment for audiophiles. However, like any vintage equipment, they may require maintenance or reconditioning (such as replacing capacitors) to ensure optimal performance.
Combination: The sound quality may vary depending on the pre-amplifier used. Comparative tests suggest that the combination with the original C90/C900 pre-amplifier provides the original setup, while other pre-amplifiers may offer different sound characteristics (for example, softer or more detailed sound).
Width - 48 cm.
Height - 11 cm.
Depth - 28.5 cm.
Weight - 10 kg.
Color - Black

Era
1900-2000
Brand
Audio analysis MK2
Modelo
B90
Various models
No.
Physical condition
Very good
Number of items
1
Includes
Power cord
Year of manufacture
1980
Peso
10 kg
Functional condition
Tested and working/playable
Height
11 cm
Width
48 cm
Depth
28.5 cm